| A | B |
|---|
| ancestor | A person from whom one is descended. |
| carnivore | A flesh-eating animal. |
| comprehend | To understand. |
| duration | The time during which something lasts or continues. |
| evident | Easy to see and understand; obvious, clear. |
| extinct | No longer existing or living. |
| ferocious | Savage;fierce. |
| gigantic | Very large; like a giant in size. |
| obscure | To cover up or keep from being seen. |
| option | Choice, or something that is available as a choice. |
| premature | Too early; happening or arriving before the proper time. |
| preserve | To save; to keep from harm; to protect |
| prey | An animal that is hunted for food. |
| puny | Weak |
| survive | To stay alove where there is a chance of dying or being killed. |
| ancestor | An early kind of animal from which later ones have developed; a forerunner. |
| extinct | No longer active. |
| obscure | Hard to see; hidden. |
| obscure | Not easy to understand. |
| preserve | To keep from rotting or spoiling. |
| prey | One that is helpless or unable to resist attack; a victim. |
| prey | To hunt for food. |
| puny | Lacking in size, strength, or power. |
| survive | To continue living or existing through a threatning situation. |
| obscure | Not easy to undertand. |
